Riverside is the name of at least four different bands: 1. A progressive rock band from Warsaw, Poland, founded in 2001 by Mariusz Duda (bass guitar, vocal), Piotr Grudziński (electric guitar) and Piotr Kozieradzki (drums), who shared a love for progressive rock and heavy metal. Up to 2003 Jacek Mielnicki was playing keyboard in the band, but some conflicts led him to leave the band, and in the same year the new keyboardist Michał Łapaj joined. Following their 2003 debut Out Of Myself, the band were signed by major prog label InsideOut, releasing Second Life Syndrome in 2005.